Anion Receptors Based on Acyclic Phenol-Formaldehyde Oligomers Bearing Thiourea Groups

Yoshihiro      Ohba; Takeshi      Ito; Toshiro      Takasawa; Kazuaki      Ito

doi:10.2174/157017806776114603

Abstract

We prepared anion receptors based on acyclic phenol-formaldehyde oligomer bearing thiourea groups. The dimer (1b) and trimer (1c) showed the binding selectivity toward chloride (Cl-) and hydrogen sulfate (HSO4 -), respectively. This selectivity will be attributed to the fit size and shape of anionic species, which favor formation of a stable host-guest complex through the multiple intermolecular hydrogen bonding.

Keywords: hydrogen bonding, acyclic phenol-formaldehyde oligomer, thiourea, Anion recognition

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Letters in Organic Chemistry

Title:Anion Receptors Based on Acyclic Phenol-Formaldehyde Oligomers Bearing Thiourea Groups

Volume: 3 Issue: 4

Author(s): Yoshihiro Ohba, Takeshi Ito, Toshiro Takasawa and Kazuaki Ito

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Keywords: hydrogen bonding, acyclic phenol-formaldehyde oligomer, thiourea, Anion recognition

Abstract: We prepared anion receptors based on acyclic phenol-formaldehyde oligomer bearing thiourea groups. The dimer (1b) and trimer (1c) showed the binding selectivity toward chloride (Cl-) and hydrogen sulfate (HSO4 -), respectively. This selectivity will be attributed to the fit size and shape of anionic species, which favor formation of a stable host-guest complex through the multiple intermolecular hydrogen bonding.

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Ohba Yoshihiro, Ito Takeshi, Takasawa Toshiro and Ito Kazuaki, Anion Receptors Based on Acyclic Phenol-Formaldehyde Oligomers Bearing Thiourea Groups, Letters in Organic Chemistry 2006; 3 (4) . https://dx.doi.org/10.2174/157017806776114603